DR. EUGENE J LOUIE-NG M.D.
NPI 1164476818
Obstetrics & Gynecology in Gainesville, VA
About Dr. Eugene J Louie-ng M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. EUGENE J LOUIE-NG M.D. (NPI 1164476818) is an individual obstetrics & gynecology provider in Gainesville, Virginia, licensed in Virginia (0101230347) and active in the NPI registry since May 2006. He is enrolled in Medicare PECOS, is affiliated with Novant Prince William Medical Center, and maintains 4 additional practice locations.
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Locations 4
Other Identifiers 9
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Dr. Eugene J Louie-ng M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
12Medicare enrollment records show Eugene Louie-ng reassigns Medicare billing to 12 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Gainesville, VA 20155
- Reassigned Medicare billing, Virginia enrollment
- 584 clinicians in this Medicare group
Leesburg, VA 20176
- Reassigned Medicare billing, District of Columbia and Virginia enrollments
- 16 clinicians in this Medicare group
Charlottesville, VA 22911
- Reassigned Medicare billing, Virginia enrollment
- 307 clinicians in this Medicare group
Midlothian, VA 23114
- Reassigned Medicare billing, Virginia enrollment
- 315 clinicians in this Medicare group
Raleigh, NC 27607
- Reassigned Medicare billing, North Carolina enrollment
- 701 clinicians in this Medicare group
Greenville, NC 27834
- Reassigned Medicare billing, North Carolina enrollment
- 1,653 clinicians in this Medicare group
Manteo, NC 27954
- Reassigned Medicare billing, North Carolina enrollment
- Medicare enrollment name: Outer Banks Professional Services, LLC
- 346 clinicians in this Medicare group
Jacksonville, NC 28546
- Reassigned Medicare billing, North Carolina enrollment
- 137 clinicians in this Medicare group
Brockton, MA 02301
- Reassigned Medicare billing, Massachusetts enrollment
- 409 clinicians in this Medicare group
Boston, MA 02215
- Reassigned Medicare billing, Massachusetts enrollment
- 161 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 3
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Novant Prince William Medical Center
Acute Care Hospitals · Manassas, VAUva Health Haymarket Medical Center
Acute Care Hospitals · Haymarket, VAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 20155 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Reported Quality Measures
Other Providers at the Same Location NPPES 7
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
GAINESVILLE, NC 20155
GAINESVILLE, VA 20155
GAINESVILLE, VA 20155
GAINESVILLE, VA 20155
GAINESVILLE, VA 20155
GAINESVILLE, VA 20155
GAINESVILLE, VA 20155
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Eugene Louie-ng's NPI number?
The NPI number for Eugene Louie-ng is 1164476818. It was assigned to this individual provider in the NPPES registry on May 19, 2006.
Where is Eugene Louie-ng located?
Eugene Louie-ng practices at 7915 Lake Manassas Drive Suite 205, Gainesville, VA 20155. The listed phone number is (866) 775-3551.
What is Eugene Louie-ng's specialty?
The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.
Is Eugene Louie-ng enrolled in Medicare?
Yes. Eugene Louie-ng is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Eugene Louie-ng's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Eugene Louie-ng reassigns Medicare benefits to 12 organizations: Uva Community Health Medical Group, LLC (Gainesville, VA), Dhp Of Virginia PC (Leesburg, VA), Martha Jefferson Medical Group LLC (Charlottesville, VA), Obhg Virginia, LLC (Midlothian, VA), North Carolina Mg, LLC (Raleigh, NC) and 7 more organizations, listed in the Medicare section above. Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Eugene Louie-ng's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Eugene Louie-ng accept?
Health plans from Blue Cross and Blue Shield of NC, CareSource, Cigna Healthcare, Oscar Health and Taro Health and 1 other insurer list Eugene Louie-ng as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is Eugene Louie-ng affiliated with any hospitals?
According to CMS data, Eugene Louie-ng is affiliated with Novant Prince William Medical Center and Uva Health Haymarket Medical Center.
When was this NPI record last updated?
The NPPES record for Eugene Louie-ng was last updated on August 21, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Dr. Eugene J Louie-Ng, M.D. · NPI 1164476818
Obstetrics & Gynecology physician in Gainesville, Virginia. Individual provider, active in the CMS NPPES registry since May 19, 2006.
## Identity
- **NPI:** 1164476818 (Entity type: Individual)
- **Enumerated:** May 19, 2006
- **Primary specialty:** Obstetrics & Gynecology · taxonomy 207V00000X
- **State license:** 0101230347 (Virginia)
- **Sole proprietor:** No
## Practice location
- **Address:** 7915 LAKE MANASSAS DRIVE, SUITE 205, Gainesville, VA 20155
- **Phone:** (866) 775-3551 · **Fax:** (703) 365-7702
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 12 organizations under Medicare reassignment (form CMS-855R): Uva Community Health Medical Group, LLC (NPI 1780028373, Gainesville, VA); Dhp Of Virginia PC (NPI 1992060255, Leesburg, VA); Martha Jefferson Medical Group LLC (NPI 1275720559, Charlottesville, VA); Obhg Virginia, LLC (NPI 1972807394, Midlothian, VA); North Carolina Mg, LLC (NPI 1215741640, Raleigh, NC); and 7 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1995
## Record status
- **NPPES last updated:** August 21, 2026
- **Other identifiers:** Other 2636038; Other 388653; Other 505708; and 6 more
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Source: [NPI Profile](https://npiprofile.com/npi/1164476818) · Data from the CMS NPPES public registry.